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Reference · Definitions and formulas

Cash flow definitions and formulas

Every term in the course with the formula behind it. Search it or filter by topic.

For educational purposes only. This material is general education about managing cash flow. It isn't legal, tax, accounting, lending, or investment advice, and reading it doesn't make you our client. Every business is different. Before you act on anything here, confirm it with your attorney, your CPA or tax advisor, your lender, and any other professional who advises your company. See the terms of use.

Every term used in the course, with the formula behind it. Research models carry an author-date credit; full citations are in the references. Type to filter, or pick a group.

Cash flow

Basics

Cash that actually enters or leaves the business in a period. A sale becomes cash only when it is collected.

Cash flow = Cash receipts − Cash disbursements

Net income (profit)

Basics

Revenue minus all expenses under accrual accounting, recorded when earned or incurred, whether or not cash has moved.

Net income = Revenue − COGS − Operating expenses − Interest − Taxes

Accrual accounting

Basics

Records revenue when earned and expenses when incurred. It is why profit and cash diverge.

Liquidity

Basics

Cash you can reach now: cash on hand plus undrawn committed credit.

Liquidity = Cash + Revolver availability

Operating cash flow (CFO)

Statements

Cash generated by running the business. Under the indirect method it starts from net income.

CFO = Net income + D&A + Other non-cash items − ΔReceivables − ΔInventory + ΔPayables

Investing cash flow (CFI)

Statements

Cash spent on or received from long-term assets and acquisitions.

CFI = − Capex − Acquisitions + Asset sale proceeds

Financing cash flow (CFF)

Statements

Cash from or to lenders and owners.

CFF = New debt − Debt repaid + Equity issued − Dividends or distributions

Indirect method

Statements

Builds CFO by adjusting net income for non-cash items and working capital changes. Used by most companies.

Direct method

Statements

Lists actual cash receipts and payments by type. The 13-week forecast is a direct method statement.

CFO = Customer receipts − Supplier payments − Payroll − Other operating payments

Depreciation and amortization (D&A)

Statements

Non-cash expense that spreads an asset's cost over its life. Added back in the indirect method.

EBITDA

Statements

Earnings before interest, taxes, depreciation and amortization. A proxy for operating cash before working capital and capex.

EBITDA = EBIT + D&A

EBIT

Statements

Operating profit before interest and taxes.

EBIT = Revenue − COGS − Operating expenses

Capital expenditures (capex)

Statements

Cash spent on long-term assets like trucks, equipment, buildings and software.

Free cash flow (FCF)

Statements

Cash left after operating the business and maintaining its asset base.

FCF = CFO − Capex

Unlevered free cash flow

Statements

Cash available to all capital providers before interest. Used in DCF valuation.

UFCF = EBIT × (1 − tax rate) + D&A − Capex − ΔNet working capital

Levered free cash flow

Statements

Cash left for owners after debt service.

LFCF = CFO − Capex − Scheduled principal

Working capital

Working capital

Short-term assets minus short-term liabilities.

Working capital = Current assets − Current liabilities

Net working capital (operating)

Working capital

The cash tied up in running the business, excluding cash and debt.

NWC = Receivables + Inventory − Payables

Accounts receivable

Working capital

Money customers owe you for sales already made.

Accounts payable

Working capital

Money you owe suppliers for goods or services already received.

DSO, days sales outstanding

Working capital

Average days to collect from customers.

DSO = Receivables ÷ Revenue × 365

DIO, days inventory outstanding

Working capital

Average days inventory sits before it is sold. Most owners track inventory turns instead; four turns a year is about 91 days.

DIO = Inventory ÷ COGS × 365 = 365 ÷ inventory turns

Inventory turns

Working capital

How many times a year inventory sells through and is replaced. More turns mean less cash sitting on the shelf.

Inventory turns = COGS ÷ Average inventory = 365 ÷ DIO

DPO, days payables outstanding

Working capital

Average days you take to pay suppliers.

DPO = Payables ÷ COGS × 365

Cash conversion cycle (CCC)

Working capital

Days between paying suppliers and collecting from customers. Every day ties up a day of sales or cost.

CCC = DSO + DIO − DPO

Working capital tied up by the cycle

Working capital

Cash invested in the cycle. The precise version values each leg at its own base.

Simple: Revenue ÷ 365 × CCC · Precise: Revenue ÷ 365 × DSO + COGS ÷ 365 × (DIO − DPO)

Growth cash requirement

Working capital

Extra working capital needed to support higher sales.

ΔWorking capital ≈ ΔRevenue × CCC ÷ 365

Current ratio

Ratios

Current assets relative to current liabilities.

Current ratio = Current assets ÷ Current liabilities

Quick ratio

Ratios

Liquidity without counting inventory.

Quick ratio = (Cash + Marketable securities + Receivables) ÷ Current liabilities

Cash ratio

Ratios

The strictest liquidity test.

Cash ratio = Cash ÷ Current liabilities

Operating cash flow ratio

Ratios

A year of operating cash against short-term obligations.

OCF ratio = CFO ÷ Current liabilities

Cash conversion

Ratios

Share of EBITDA that becomes operating cash.

Cash conversion = CFO ÷ EBITDA

CFO to net income

Ratios

Whether earnings are turning into cash.

CFO ÷ Net income

Accruals ratio

Ratios

Portion of earnings not backed by cash. High values predict weaker future earnings (Sloan 1996).

Accruals ratio = (Net income − CFO) ÷ Average total assets

Capex to depreciation

Ratios

Whether reinvestment keeps pace with asset wear.

Capex ÷ D&A

Debt service coverage ratio (DSCR)

Debt and liquidity

Cash available to pay scheduled debt. A common lender threshold is 1.20x to 1.25x, though each credit agreement sets its own definition. This page uses the version shown.

DSCR = (EBITDA − Capex) ÷ (Interest + Scheduled principal)

Fixed charge coverage ratio (FCCR)

Debt and liquidity

Common ABL and term loan covenant. A common lender threshold is 1.0x to 1.1x, often tested only when availability runs low.

FCCR = (EBITDA − Unfinanced capex − Cash taxes − Distributions) ÷ (Interest + Scheduled principal + Lease payments)

Interest coverage

Debt and liquidity

Operating profit relative to interest cost.

Interest coverage = EBIT ÷ Interest expense

Net debt

Debt and liquidity

Debt less cash on hand.

Net debt = Total debt − Cash

Leverage (net debt to EBITDA)

Debt and liquidity

Years of EBITDA needed to repay net debt.

Leverage = Net debt ÷ EBITDA

Revolver

Debt and liquidity

A revolving line of credit you draw and repay as needed, up to a limit.

Borrowing base

Debt and liquidity

The collateral-driven cap on an asset-based revolver.

Borrowing base = Eligible AR × AR advance rate + Eligible inventory × Inventory advance rate

Availability

Debt and liquidity

What you can still draw today.

Availability = min(Commitment, Borrowing base) − Outstanding balance − Letters of credit

Springing covenant

Debt and liquidity

A covenant tested only when availability falls below a trigger, common in ABL facilities.

Burn rate

Debt and liquidity

Net cash consumed per month.

Monthly burn = Cash receipts − Cash disbursements (when negative)

Runway

Debt and liquidity

Months until liquidity runs out at the current burn.

Runway = (Cash + Availability) ÷ Monthly net burn

13-week cash flow forecast

Debt and liquidity

A rolling, weekly, direct method forecast of receipts and disbursements for one quarter.

Ending cash = Beginning cash + Receipts − Disbursements ± Revolver

Forecast variance

Debt and liquidity

Actual minus forecast for each line, reviewed every week to improve accuracy.

Variance = Actual − Forecast · Variance % = Variance ÷ Forecast

Altman Z-score

Research

Five-ratio distress model for public manufacturers. Below 1.81 distress, above 2.99 safe (Altman 1968).

Z = 1.2·WC/TA + 1.4·RE/TA + 3.3·EBIT/TA + 0.6·MVE/TL + 1.0·Sales/TA

Altman Z″-score

Research

Version for private and non-manufacturing firms. Below 1.1 distress, above 2.6 safe (Altman 2000; Altman and Hotchkiss 2006).

Z″ = 6.56·WC/TA + 3.26·RE/TA + 6.72·EBIT/TA + 1.05·BVE/TL

Ohlson O-score

Research

Logit model giving a probability of bankruptcy from nine accounting variables (Ohlson 1980).

P(default) = 1 ÷ (1 + e^(−O))

Distance to default

Research

Standard deviations between asset value and the default point, from the Merton model (Merton 1974; Bharath and Shumway 2008).

DD = [ln(V ÷ D) + (μ − σ²/2)·T] ÷ (σ·√T)

Beneish M-score

Research

Eight-ratio model flagging likely earnings manipulation. Above −1.78 is the common flag (Beneish 1999).

Hazard model

Research

Estimates the probability of default each period using data that changes over time, correcting static model bias (Shumway 2001).

Cash flow at risk (CFaR)

Research

The shortfall in cash flow from plan at a given confidence level, typically via Monte Carlo (Stein et al. 2001).

CFaR(95%) = Expected cash flow − 5th percentile cash flow

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